<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .div {
            margin: 100px auto;
            width: 1000px;
            height: 300px;
            border: 1px solid black;
            box-shadow: 1px 1px;
        }
    </style>
</head>
<body>
<div class="div">
    hello world
</div>
</body>
<script src="./dist/index.bundle.js"></script>
</html>